General OverviewAn allergy is the body's hypersensitivity to substances in the environment. Mold, dust, pollen, pet dander, and even some foods can cause allergic reactions.
Diagnostic and Surgical Procedures
InDepth: Allergic Rhinitis
- What is allergic rhinitis?
- What are the risk factors?
- What are the symptoms?
- How is it diagnosed?
- How is it treated?
- What are the screening tests?
- How can I reduce my risk?
- What should I ask my healthcare provider about allergic rhinitis?
Find answers in our in-depth report on allergic rhinitis:
Living With AllergiesHealthy traveling with allergiesWhile you cannot allergy-proof your vacation, you can take steps to minimize the effects allergies might have on your vacation. Read here to find out how.
Preventing AllergiesPets and your child’s allergiesDoes being around pets at a young age increase a child’s risk of developing allergies and asthma? Read here to find out what the research says.
Special TopicsFood allergy—it's nothing to sneeze atWhat is a food allergy and what are your treatment options if you have one?Preventing food allergies in infants and childrenWith all the buzz about food allergies, you may be wondering how you can protect your child. Learn the basics about food allergies and if there is anything you can do to keep your child allergy-free.Treating latex allergyA latex allergy occurs when the body’s immune system reacts to proteins found in the natural rubber latex. Read here to find out more.
Natural and Alternative Treatments (By Condition)
American Academy of Allergy, Asthma and Immunology
Asthma and Allergy Foundation of America
National Institute of Allergy and Infectious Diseases (NIAID)